Preparation of Fe3O4/SiO2 Core/Shell Nanoparticles with Ultrathin Silica Layer

被引：9
|
作者：
Jang, Eue-Soon [1 ]
机构：
[1] Kumoh Natl Inst Technol, Dept Appl Chem, Gyeongbuk 730701, South Korea
来源：
JOURNAL OF THE KOREAN CHEMICAL SOCIETY-DAEHAN HWAHAK HOE JEE | 2012年 / 56卷 / 04期
关键词：
Reverse microemulsion procedure; Fe3O4/SiO2; nanoparticles; Silica thickness; Water-to-surfactant ratio; Fe3O4; concentration;
D O I：
10.5012/jkcs.2012.56.4.478
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
We successfully synthesized Fe3O4/SiO2 nanoparticles with ultrathin silica layer of 1.0 +/- 0.5 nm that was fine controlled by changing concentration of Fe3O4. Among various reaction conditions for silica coating, increasing concentration of Fe3O4 was more effective approach to decrease silica thickness compared to water-to-surfactant ratio control. Moreover, we found that concentration of the 1-octanol is also important factor to produce the homogeneous Fe3O4/SiO2 nanoparticles. The present approach could be available to apply on preparation of other core/shell nanoparticles with ultrathin silica layer.
引用
收藏
页码：478 / 483
页数：6
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